Things look OK now because "ldd libabrt.so.0" does include the line:
libreport.so.0 => /lib64/libreport.so.0 (0x0000003bfd400000)
which means that libreport.so.0 is required to be loaded by libabrt.so.0.
Direct confirmation would be if libreport.so.0 is listed as DT_NEEDED by libabrt:
$ readelf --dynamic libabrt.so.0 | grep '(NEEDED)'
0x0000000000000001 (NEEDED) Shared library: [libreport.so.0]